package com.example.websocket.service;

import com.example.websocket.entity.Group;

import java.util.List;

public interface IGroupService {
    int deleteByPrimaryKey(Integer id);

    int insert(Group record);

    Group selectByPrimaryKey(Integer id);

    int updateByPrimaryKey(Group record);

    List<Group> selectByUserid(int id);

    List<Group> selectAll();
}
